Pak will have to observe 'Black Day' throughout the year: Shiv Sena
New Delhi, July 20 (ANI): The Shiv Sena has unleashed a belligerent attack on Pakistan over the loss of innocent lives in the recent unrest in Kashmir valley and said Islamabad will have to observe a 'Black Day' throughout the year as the Indian Army is so strong that it will gun down a terrorist like Burhan Wani every day.